Question

Write the main structural difference between DNA and RNA. Of the two bases, thymine and uracil, which one is present in DNA ?

Answer 1

Structural differences between DNA and RNA On the basis of Thymine and Uracil

S.No.	RNA	DNA
1.	The sugar is D - ribose.	Sugar is -2-deoxy ribose.
2.	It exists as a single chain structure.	It has a double helix structure.
3.	The base units are : * Adenine (A) and guanine (G) as purine bases. * Cytosine (C) and uracil (U) as pyrimidine bases.	The base units are : * Adenine (A) andguaninie (G) as purine bases. * Cytosine (C) and thymine (T) as pyrimidine bases
4.	It is responsible for protein synthesis.	It is responsible for inheritance of characters.